There is little surprise about Syria's revelation that western intelligence officers have come to call about "security co-operation".
Terror suspect Mohammed Ahmed Mohammed remains on the run after evading surveillance at a London mosque.
Six Islamist extremists have been sentenced to between 18 years and 9 months and 19 and a half years at the Old Bailey in London.
British officials in Sochi say they have not been briefed specifically by the UK government regarding a toothpaste explosive threat warning emanating from American security services.
They say the British security threat level is unchanged.
The American government has sent advice to airlines flying into Russia, warning them of intelligence which suggests terrorists could smuggle explosives onto planes in toothpaste tubes, according to NBC.
According to the US network, a statement from a Homeland Security official read:
"Out of an abundance of caution, [Department of Homeland Security] regularly shares relevant information with domestic and international partners, including those associated with international events such as the Sochi Olympics.
"While we are not aware of a specific threat to the homeland at this time, this routine communication is an important part of our commitment to making sure we meet that priority."
An US official said there is no indication of threat to planes flying either to or within the United States, adding that any potential threat was limited to flights to Russia.
Terrorists might be trying to smuggle explosives in toothpaste tubes onto planes heading to Russia, according to an advisory warning from the US government, NBC News reported.
A statement from a Homeland Security official said: "While we are not aware of a specific threat to the homeland at this time, this routine communication is an important part of our commitment to making sure we meet that priority."
The warning was sent from US security officials to airlines flying into Russia, which hosts the Sochi Winter Olympics from Friday.
Former prime minister Tony Blair has warned terrorism motivated by religious extremism is growing and the West needs a global strategy to tackle it.
Mr Blair writes in The Observer that wars in the 21st Century will no longer be about extreme political ideology like the last.
The Middle East peace envoy said the West must tackle conflicts by educating people about religious tolerance alongside security measures, including military action.
He writes: "The fact is that, though of course there are individual grievances or reasons for the violence in each country, there is one thing self-evidently in common: the acts of terrorism are perpetrated by people motivated by an abuse of religion.
"It is a perversion of faith. But there is no doubt that those who commit the violence often do so by reference to their faith and the sectarian nature of the conflict is a sectarianism based on religion. There is no doubt either that this phenomenon is growing, not abating."
Tpims are "a little bit like grounding a child", according to a security expert.
Will Geddes spoke to Daybreak about the controversial counter-terrorism measures, which he felt failed to rehabilitate alleged terror suspects.
"What is it doing to rehabilitate the individual? To try and diffuse the extremism?
"It is a little bit like grounding a child. If you ground them for two weeks they are probably going to try and climb out the window when mum and dad are asleep."
Tpims provide "some of the strongest possible protections" against terrorists allowed by the court, the Home Office has said.
Dismissing criticism Tpims were not robust enough to deal with alleged terrorists, a spokesman for the department said:
– A Home Office spokesman
Tpims were introduced because control orders were not working and their powers were being struck down by the courts.
They now provide some of the strongest possible protections that the courts will allow and the police and Security Service believe they have been effective in reducing the national security risk posed by a number of individuals.
But Tpims are just one weapon in the considerable armoury at the disposal of the police and Security Service to disrupt terrorist activity.
Contentious counter-terrorism powers fail to "serve any investigative function", a group of MPs and Lords has said.
The joint committee on human rights wants to re-examine terrorism prevention and investigate measures (Tpims) so the next Government can consider them during a broader look at all counter-terrorism measures.
The call comes after suspected terrorist Mohammed Ahmed Mohamed fled a west London mosque in a burka last November, while fellow Tpim subject Ibrahim Magag vanished in a black cab on Boxing Day 2012. Both are still missing.
Committee chair Dr Hywel Francis MP said: "We are not clear that these measures continue to be as practically useful as the Government claimed they would be when the Act was passed in 2011.
"There is no evidence that they serve any investigative function and even as preventive measures they seem to be going out of favour with the agencies."
A man who has been arrested at Stansted airport on suspicion of being involved in terrorism offences was returning from Istanbul, Turkey.
Officers for the Metropoiltan Police's Counter Terrorism Command stopped the 21-year-old at 8.40pm on Sunday 19 January following his return from Istanbul via Stuttgart, Germany.
He was subsequently arrested by officers at 1.10am today and taken to a London police station where he remains in custody.
The arrest was not in response to any immediate threat or risk.
Detectives have carried out searches of three addresses in connection with the investigation, Scotland Yard said.
A 21-year-old man has been arrested at Stansted Airport on suspicion of being involved in the commission, preparation and instigation of terrorism offences, Scotland Yard said.